CVE-2026-69438
Incorrect conversion between numeric types in Microsoft JScript allows an unauthorized attacker to execute code over a network.
Scoring
- Severity
- HIGH
- CVSS base score
- 8.1
- CVSS vector
- CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H/E:U/RL:O/RC:C
- EPSS probability
- 0.69%
- CWE
- CWE-681
- Published
- 2026-09-08
- Last modified
- 2026-09-10
Affected products
- Microsoft Windows 10 Version 1607
- Microsoft Windows 10 Version 1809
- Microsoft Windows 10 Version 21H2
- Microsoft Windows 10 Version 22H2
- Microsoft Windows 11 version 23H2
- Microsoft Windows 11 Version 23H2
- Microsoft Windows 11 Version 24H2
- Microsoft Windows 11 Version 25H2
Weakness type
Related vulnerabilities
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- CVE-2026-84970 — Heap over-read or silent misparse via 32-bit truncation of JSON length in BSON JSON parser
- CVE-2026-82522 — libjxl < 0.12.0 Container Box Parser Integer Underflow via 32-bit Size Truncation
- CVE-2026-82457 — su-exec through 0.3 Privilege Escalation via Numeric User ID
- CVE-2026-75145 — FFmpeg Integer Narrowing Conversion OOB Memory Access in AV1 RTP Packetizer
- CVE-2026-19879 — Io.undertow/undertow: undertow: http response header integrity issue due to character truncation
- CVE-2026-6426 — Qemu-kvm: vhost inflight migration vmstate integer type mismatch causes out-of-bounds access